Home / 14,042.60-19,378.80-7,755

Finding the Fourth Proportional to 14,042.60, 19,378.80 and 7,755

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Solution

The fourth proportional to 14,042.60, 19,378.80 and 7,755 is: 10,701.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,042.60 : 19,378.80 = 7,755 : x
  2. Step 2: Convert to fraction form
    14,042.60/19,378.80 = 7,755/x
  3. Step 3: Cross multiply
    14,042.60x = 19,378.80 × 7,755
  4. Step 4: Simplify right side
    14,042.60x = 150,282,594
  5. Step 5: Solve for x
    x = 150,282,594/14,042.60
  6. Step 6: Final answer
    x = 10,701.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.